To ensure reliability, purchase GM part # 12578330 Engine Coolant Crossover Pipe Assembly. It is sometimes referred to as Chevrolet Cooling Hose. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Chevrolet Avalanche, Express, Silverado models.
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